h1{
    color: red;
    font-size: 30px;
}
.app-con{
    color: aqua;
    font-size: 50px;
}

.demo-h1{
    color: blueviolet;
    font-size: 60px;
}

a{
    padding: 20px;
    font-size: 30px;
}

.active{
    padding: 20px;
    font-size: 30px;
    background: rgb(238, 138, 56);
}

